61090989164 has 12 divisors (see below), whose sum is σ = 108011388744. Its totient is φ = 30230592384.

The previous prime is 61090989133. The next prime is 61090989209. The reversal of 61090989164 is 46198909016.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78725114 + ... + 78725889.

It is an arithmetic number, because the mean of its divisors is an integer number (9000949062).

Almost surely, 2^61090989164 is an apocalyptic number.

It is an amenable number.

61090989164 is a deficient number, since it is larger than the sum of its proper divisors (46920399580).

61090989164 is a wasteful number, since it uses less digits than its factorization.

61090989164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157451104 (or 157451102 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 53.

The spelling of 61090989164 in words is "sixty-one billion, ninety million, nine hundred eighty-nine thousand, one hundred sixty-four".