83766936057555 has 16 divisors (see below), whose sum is σ = 141911044615584. Its totient is φ = 42047716922880.

The previous prime is 83766936057533. The next prime is 83766936057613. The reversal of 83766936057555 is 55575063966738.

It is a happy number.

It is not a de Polignac number, because 83766936057555 - 2⁹ = 83766936057043 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164248893976 + ... + 164248894485.

It is an arithmetic number, because the mean of its divisors is an integer number (8869440288474).

Almost surely, 2^{83766936057555} is an apocalyptic number.

83766936057555 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

83766936057555 is a deficient number, since it is larger than the sum of its proper divisors (58144108558029).

83766936057555 is a wasteful number, since it uses less digits than its factorization.

83766936057555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328497788486.

The product of its (nonzero) digits is 4286520000, while the sum is 75.

The spelling of 83766936057555 in words is "eighty-three trillion, seven hundred sixty-six billion, nine hundred thirty-six million, fifty-seven thousand, five hundred fifty-five".