2161089503762 has 128 divisors (see below), whose sum is σ = 4102505750016. Its totient is φ = 832737411072.

The previous prime is 2161089503743. The next prime is 2161089503861. The reversal of 2161089503762 is 2673059801612.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2161089503762.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106463198 + ... + 106483494.

It is an arithmetic number, because the mean of its divisors is an integer number (32050826172).

Almost surely, 2^{2161089503762} is an apocalyptic number.

2161089503762 is a deficient number, since it is larger than the sum of its proper divisors (1941416246254).

2161089503762 is a wasteful number, since it uses less digits than its factorization.

2161089503762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20580.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 2161089503762 in words is "two trillion, one hundred sixty-one billion, eighty-nine million, five hundred three thousand, seven hundred sixty-two".