250670087661 has 16 divisors (see below), whose sum is σ = 382791412224. Its totient is φ = 142933320624.

The previous prime is 250670087587. The next prime is 250670087711. The reversal of 250670087661 is 166780076052.

It is not a de Polignac number, because 250670087661 - 2⁷ = 250670087533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 250670087661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250670187661) 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, 12770355 + ... + 12789968.

It is an arithmetic number, because the mean of its divisors is an integer number (23924463264).

Almost surely, 2^250670087661 is an apocalyptic number.

250670087661 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

250670087661 is a deficient number, since it is larger than the sum of its proper divisors (132121324563).

250670087661 is a wasteful number, since it uses less digits than its factorization.

250670087661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25560800.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 250670087661 in words is "two hundred fifty billion, six hundred seventy million, eighty-seven thousand, six hundred sixty-one".