20051627145 has 32 divisors (see below), whose sum is σ = 35039364480. Its totient is φ = 9710845440.

The previous prime is 20051627117. The next prime is 20051627147. The reversal of 20051627145 is 54172615002.

It is not a de Polignac number, because 20051627145 - 2¹² = 20051623049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20051627147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75421 + ... + 213989.

It is an arithmetic number, because the mean of its divisors is an integer number (1094980140).

Almost surely, 2^20051627145 is an apocalyptic number.

It is an amenable number.

20051627145 is a deficient number, since it is larger than the sum of its proper divisors (14987737335).

20051627145 is a wasteful number, since it uses less digits than its factorization.

20051627145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139465.

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 20051627145 in words is "twenty billion, fifty-one million, six hundred twenty-seven thousand, one hundred forty-five".