20154160634 has 8 divisors (see below), whose sum is σ = 31206442368. Its totient is φ = 9752013180.

The previous prime is 20154160597. The next prime is 20154160651. The reversal of 20154160634 is 43606145102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20154160634² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20154160634.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162533492 + ... + 162533615.

It is an arithmetic number, because the mean of its divisors is an integer number (3900805296).

Almost surely, 2^20154160634 is an apocalyptic number.

20154160634 is a deficient number, since it is larger than the sum of its proper divisors (11052281734).

20154160634 is a wasteful number, since it uses less digits than its factorization.

20154160634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325067140.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 20154160634 in words is "twenty billion, one hundred fifty-four million, one hundred sixty thousand, six hundred thirty-four".