21620064010310 has 32 divisors (see below), whose sum is σ = 39157519564800. Its totient is φ = 8594467359840.

The previous prime is 21620064010267. The next prime is 21620064010313. The reversal of 21620064010310 is 1301046002612.

It is a super-2 number, since 2×21620064010310² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21620064010310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21620064010313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3462770 + ... + 7431749.

It is an arithmetic number, because the mean of its divisors is an integer number (1223672486400).

Almost surely, 2^{21620064010310} is an apocalyptic number.

21620064010310 is a deficient number, since it is larger than the sum of its proper divisors (17537455554490).

21620064010310 is a wasteful number, since it uses less digits than its factorization.

21620064010310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10895756.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 21620064010310 in words is "twenty-one trillion, six hundred twenty billion, sixty-four million, ten thousand, three hundred ten".