266004353601400 has 24 divisors (see below), whose sum is σ = 618460122123720. Its totient is φ = 106401741440480.

The previous prime is 266004353601361. The next prime is 266004353601487. The reversal of 266004353601400 is 4106353400662.

It is a happy number.

It is a super-2 number, since 2×266004353601400² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 665010883804 + ... + 665010884203.

It is an arithmetic number, because the mean of its divisors is an integer number (25769171755155).

Almost surely, 2^{266004353601400} is an apocalyptic number.

266004353601400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266004353601400 is an abundant number, since it is smaller than the sum of its proper divisors (352455768522320).

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

266004353601400 is a wasteful number, since it uses less digits than its factorization.

266004353601400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330021768023 (or 1330021768014 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 266004353601400 in words is "two hundred sixty-six trillion, four billion, three hundred fifty-three million, six hundred one thousand, four hundred".