10621666722 has 16 divisors (see below), whose sum is σ = 21761464032. Its totient is φ = 3454200480.

The previous prime is 10621666711. The next prime is 10621666733. The reversal of 10621666722 is 22766612601.

It is an interprime number because it is at equal distance from previous prime (10621666711) and next prime (10621666733).

It is a super-2 number, since 2×10621666722² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21588508 + ... + 21588999.

It is an arithmetic number, because the mean of its divisors is an integer number (1360091502).

Almost surely, 2^10621666722 is an apocalyptic number.

10621666722 is an abundant number, since it is smaller than the sum of its proper divisors (11139797310).

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

10621666722 is a wasteful number, since it uses less digits than its factorization.

10621666722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43177553.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 10621666722 in words is "ten billion, six hundred twenty-one million, six hundred sixty-six thousand, seven hundred twenty-two".