5266451656404 has 30 divisors (see below), whose sum is σ = 13767544917434. Its totient is φ = 1755483885360.

The previous prime is 5266451656369. The next prime is 5266451656439. The reversal of 5266451656404 is 4046561546625.

5266451656404 is a `hidden beast` number, since 5 + 2 + 6 + 64 + 5 + 16 + 564 + 0 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (5266451656369) and next prime (5266451656439).

It can be written as a sum of positive squares in only one way, i.e., 4639586760900 + 626864895504 = 2153970^2 + 791748^2 .

It is a super-2 number, since 2×5266451656404² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8127239887 + ... + 8127240534.

Almost surely, 2^{5266451656404} is an apocalyptic number.

5266451656404 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

5266451656404 is an abundant number, since it is smaller than the sum of its proper divisors (8501093261030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5266451656404 is a wasteful number, since it uses less digits than its factorization.

5266451656404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16254480437 (or 16254480426 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 54.

The spelling of 5266451656404 in words is "five trillion, two hundred sixty-six billion, four hundred fifty-one million, six hundred fifty-six thousand, four hundred four".