20376732155 has 8 divisors (see below), whose sum is σ = 26333007792. Its totient is φ = 15047432928.

The previous prime is 20376732133. The next prime is 20376732157. The reversal of 20376732155 is 55123767302.

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 20376732155 - 2¹⁴ = 20376715771 is a prime.

It is a super-2 number, since 2×20376732155² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20376732157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156744029 + ... + 156744158.

It is an arithmetic number, because the mean of its divisors is an integer number (3291625974).

Almost surely, 2^20376732155 is an apocalyptic number.

20376732155 is a deficient number, since it is larger than the sum of its proper divisors (5956275637).

20376732155 is a wasteful number, since it uses less digits than its factorization.

20376732155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313488205.

The product of its (nonzero) digits is 264600, while the sum is 41.

The spelling of 20376732155 in words is "twenty billion, three hundred seventy-six million, seven hundred thirty-two thousand, one hundred fifty-five".