20654577602 has 16 divisors (see below), whose sum is σ = 31706655552. Its totient is φ = 10085757360.

The previous prime is 20654577547. The next prime is 20654577617. The reversal of 20654577602 is 20677545602.

It is a super-2 number, since 2×20654577602² (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, 973952 + ... + 994932.

It is an arithmetic number, because the mean of its divisors is an integer number (1981665972).

Almost surely, 2^20654577602 is an apocalyptic number.

20654577602 is a deficient number, since it is larger than the sum of its proper divisors (11052077950).

20654577602 is a wasteful number, since it uses less digits than its factorization.

20654577602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32473.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 20654577602 in words is "twenty billion, six hundred fifty-four million, five hundred seventy-seven thousand, six hundred two".