20151157633 has 8 divisors (see below), whose sum is σ = 20836650240. Its totient is φ = 19467881040.

The previous prime is 20151157619. The next prime is 20151157643. The reversal of 20151157633 is 33675115102.

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

It is a cyclic number.

It is not a de Polignac number, because 20151157633 - 2²⁹ = 19614286721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20151157643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535498 + ... + 571891.

It is an arithmetic number, because the mean of its divisors is an integer number (2604581280).

Almost surely, 2^20151157633 is an apocalyptic number.

It is an amenable number.

20151157633 is a deficient number, since it is larger than the sum of its proper divisors (685492607).

20151157633 is a wasteful number, since it uses less digits than its factorization.

20151157633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108007.

The product of its (nonzero) digits is 18900, while the sum is 34.

The spelling of 20151157633 in words is "twenty billion, one hundred fifty-one million, one hundred fifty-seven thousand, six hundred thirty-three".