990077409166 has 16 divisors (see below), whose sum is σ = 1572524781120. Its totient is φ = 465904293120.

The previous prime is 990077409163. The next prime is 990077409179. The reversal of 990077409166 is 661904770099.

It is a super-2 number, since 2×990077409166² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 990077409166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990077409163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699250 + ... + 1571338.

It is an arithmetic number, because the mean of its divisors is an integer number (98282798820).

Almost surely, 2^990077409166 is an apocalyptic number.

990077409166 is a deficient number, since it is larger than the sum of its proper divisors (582447371954).

990077409166 is a wasteful number, since it uses less digits than its factorization.

990077409166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905499.

The product of its (nonzero) digits is 5143824, while the sum is 58.

The spelling of 990077409166 in words is "nine hundred ninety billion, seventy-seven million, four hundred nine thousand, one hundred sixty-six".