21477506006352 has 160 divisors (see below), whose sum is σ = 65297167320960. Its totient is φ = 6009916456960.

The previous prime is 21477506006317. The next prime is 21477506006371. The reversal of 21477506006352 is 25360060577412.

It is a super-2 number, since 2×21477506006352² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 31 ways as a sum of consecutive naturals, for example, 22097577 + ... + 23049032.

It is an arithmetic number, because the mean of its divisors is an integer number (408107295756).

Almost surely, 2^{21477506006352} is an apocalyptic number.

21477506006352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21477506006352 is an abundant number, since it is smaller than the sum of its proper divisors (43819661314608).

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

21477506006352 is a wasteful number, since it uses less digits than its factorization.

21477506006352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45146701 (or 45146695 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 21477506006352 in words is "twenty-one trillion, four hundred seventy-seven billion, five hundred six million, six thousand, three hundred fifty-two".