10665721562 has 32 divisors (see below), whose sum is σ = 17331874560. Its totient is φ = 4903349760.

The previous prime is 10665721553. The next prime is 10665721589. The reversal of 10665721562 is 26512756601.

It is a super-2 number, since 2×10665721562² (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 15 ways as a sum of consecutive naturals, for example, 906614 + ... + 918302.

It is an arithmetic number, because the mean of its divisors is an integer number (541621080).

Almost surely, 2^10665721562 is an apocalyptic number.

10665721562 is a deficient number, since it is larger than the sum of its proper divisors (6666152998).

10665721562 is a wasteful number, since it uses less digits than its factorization.

10665721562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12326.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 10665721562 in words is "ten billion, six hundred sixty-five million, seven hundred twenty-one thousand, five hundred sixty-two".