20154566053 has 16 divisors (see below), whose sum is σ = 21443875200. Its totient is φ = 18876944896.

The previous prime is 20154566041. The next prime is 20154566057. The reversal of 20154566053 is 35066545102.

It is a cyclic number.

It is not a de Polignac number, because 20154566053 - 2²¹ = 20152468901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154566057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5841873 + ... + 5845321.

It is an arithmetic number, because the mean of its divisors is an integer number (1340242200).

Almost surely, 2^20154566053 is an apocalyptic number.

It is an amenable number.

20154566053 is a deficient number, since it is larger than the sum of its proper divisors (1289309147).

20154566053 is a wasteful number, since it uses less digits than its factorization.

20154566053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 20154566053 in words is "twenty billion, one hundred fifty-four million, five hundred sixty-six thousand, fifty-three".