2155616086694 has 8 divisors (see below), whose sum is σ = 3695341862928. Its totient is φ = 923835465720.

The previous prime is 2155616086691. The next prime is 2155616086727. The reversal of 2155616086694 is 4966806165512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155616086691) 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, 76986288797 + ... + 76986288824.

It is an arithmetic number, because the mean of its divisors is an integer number (461917732866).

Almost surely, 2^{2155616086694} is an apocalyptic number.

2155616086694 is a deficient number, since it is larger than the sum of its proper divisors (1539725776234).

2155616086694 is a wasteful number, since it uses less digits than its factorization.

2155616086694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153972577630.

The product of its (nonzero) digits is 18662400, while the sum is 59.

The spelling of 2155616086694 in words is "two trillion, one hundred fifty-five billion, six hundred sixteen million, eighty-six thousand, six hundred ninety-four".