20413502511145 has 16 divisors (see below), whose sum is σ = 25201121738688. Its totient is φ = 15862360023360.

The previous prime is 20413502511131. The next prime is 20413502511169. The reversal of 20413502511145 is 54111520531402.

It is not a de Polignac number, because 20413502511145 - 2⁵ = 20413502511113 is a prime.

It is a super-2 number, since 2×20413502511145² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20413502511145.

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, 93880551 + ... + 94097740.

It is an arithmetic number, because the mean of its divisors is an integer number (1575070108668).

Almost surely, 2^{20413502511145} is an apocalyptic number.

It is an amenable number.

20413502511145 is a deficient number, since it is larger than the sum of its proper divisors (4787619227543).

20413502511145 is a wasteful number, since it uses less digits than its factorization.

20413502511145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187978920.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 20413502511145 in words is "twenty trillion, four hundred thirteen billion, five hundred two million, five hundred eleven thousand, one hundred forty-five".