87156715503 has 16 divisors (see below), whose sum is σ = 136525205376. Its totient is φ = 48759001440.

The previous prime is 87156715379. The next prime is 87156715511. The reversal of 87156715503 is 30551765178.

It is not a de Polignac number, because 87156715503 - 2⁹ = 87156714991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87156715103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101580825 + ... + 101581682.

It is an arithmetic number, because the mean of its divisors is an integer number (8532825336).

Almost surely, 2^87156715503 is an apocalyptic number.

87156715503 is a deficient number, since it is larger than the sum of its proper divisors (49368489873).

87156715503 is a wasteful number, since it uses less digits than its factorization.

87156715503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203162534.

The product of its (nonzero) digits is 882000, while the sum is 48.

The spelling of 87156715503 in words is "eighty-seven billion, one hundred fifty-six million, seven hundred fifteen thousand, five hundred three".