20455715561032 has 16 divisors (see below), whose sum is σ = 38364395408640. Its totient is φ = 10225210118736.

The previous prime is 20455715561023. The next prime is 20455715561041. The reversal of 20455715561032 is 23016551755402.

It is an interprime number because it is at equal distance from previous prime (20455715561023) and next prime (20455715561041).

It is a super-2 number, since 2×20455715561032² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330924888 + ... + 330986695.

It is an arithmetic number, because the mean of its divisors is an integer number (2397774713040).

Almost surely, 2^{20455715561032} is an apocalyptic number.

It is an amenable number.

20455715561032 is a deficient number, since it is larger than the sum of its proper divisors (17908679847608).

20455715561032 is a wasteful number, since it uses less digits than its factorization.

20455715561032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661915452 (or 661915448 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 20455715561032 in words is "twenty trillion, four hundred fifty-five billion, seven hundred fifteen million, five hundred sixty-one thousand, thirty-two".