21253214626032 has 160 divisors (see below), whose sum is σ = 55972385538048. Its totient is φ = 6947744053248.

The previous prime is 21253214626013. The next prime is 21253214626037. The reversal of 21253214626032 is 23062641235212.

It is a super-2 number, since 2×21253214626032² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21253214626037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 674325538 + ... + 674357054.

Almost surely, 2^{21253214626032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21253214626032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27986192769024).

21253214626032 is an abundant number, since it is smaller than the sum of its proper divisors (34719170912016).

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

21253214626032 is a wasteful number, since it uses less digits than its factorization.

21253214626032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32687 (or 32681 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 21253214626032 in words is "twenty-one trillion, two hundred fifty-three billion, two hundred fourteen million, six hundred twenty-six thousand, thirty-two".