20455715561034 has 64 divisors (see below), whose sum is σ = 45504684900864. Its totient is φ = 6090716975616.

The previous prime is 20455715561023. The next prime is 20455715561041. The reversal of 20455715561034 is 43016551755402.

It is a super-2 number, since 2×20455715561034² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33589762 + ... + 34193325.

It is an arithmetic number, because the mean of its divisors is an integer number (711010701576).

Almost surely, 2^{20455715561034} is an apocalyptic number.

20455715561034 is an abundant number, since it is smaller than the sum of its proper divisors (25048969339830).

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

20455715561034 is a wasteful number, since it uses less digits than its factorization.

20455715561034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67783231.

The product of its (nonzero) digits is 2520000, while the sum is 48.

The spelling of 20455715561034 in words is "twenty trillion, four hundred fifty-five billion, seven hundred fifteen million, five hundred sixty-one thousand, thirty-four".