8156151971 has 8 divisors (see below), whose sum is σ = 8898307824. Its totient is φ = 7414110720.

The previous prime is 8156151967. The next prime is 8156151989. The reversal of 8156151971 is 1791516518.

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 8156151971 - 2² = 8156151967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8156151961) 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, 198515 + ... + 236051.

It is an arithmetic number, because the mean of its divisors is an integer number (1112288478).

Almost surely, 2^8156151971 is an apocalyptic number.

8156151971 is a deficient number, since it is larger than the sum of its proper divisors (742155853).

8156151971 is a wasteful number, since it uses less digits than its factorization.

8156151971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57301.

The product of its digits is 75600, while the sum is 44.

The square root of 8156151971 is about 90311.4166149552. The cubic root of 8156151971 is about 2012.9289058507.

The spelling of 8156151971 in words is "eight billion, one hundred fifty-six million, one hundred fifty-one thousand, nine hundred seventy-one".