20396816051 has 8 divisors (see below), whose sum is σ = 20534942400. Its totient is φ = 20259145728.

The previous prime is 20396815991. The next prime is 20396816119. The reversal of 20396816051 is 15061869302.

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 20396816051 - 2⁶ = 20396815987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20396816651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24011 + ... + 203396.

It is an arithmetic number, because the mean of its divisors is an integer number (2566867800).

Almost surely, 2^20396816051 is an apocalyptic number.

20396816051 is a deficient number, since it is larger than the sum of its proper divisors (138126349).

20396816051 is a wasteful number, since it uses less digits than its factorization.

20396816051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228013.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 20396816051 in words is "twenty billion, three hundred ninety-six million, eight hundred sixteen thousand, fifty-one".