87666135385037 has 4 divisors (see below), whose sum is σ = 95635784056416. Its totient is φ = 79696486713660.

The previous prime is 87666135385027. The next prime is 87666135385079. The reversal of 87666135385037 is 73058353166678.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87666135385037 - 2⁶ = 87666135384973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87666135385027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3984824335673 + ... + 3984824335694.

It is an arithmetic number, because the mean of its divisors is an integer number (23908946014104).

Almost surely, 2^{87666135385037} is an apocalyptic number.

It is an amenable number.

87666135385037 is a deficient number, since it is larger than the sum of its proper divisors (7969648671379).

87666135385037 is a wasteful number, since it uses less digits than its factorization.

87666135385037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7969648671378.

The product of its (nonzero) digits is 457228800, while the sum is 68.

The spelling of 87666135385037 in words is "eighty-seven trillion, six hundred sixty-six billion, one hundred thirty-five million, three hundred eighty-five thousand, thirty-seven".