916089537990 has 32 divisors (see below), whose sum is σ = 2398488973056. Its totient is φ = 222082312160.

The previous prime is 916089537983. The next prime is 916089537991. The reversal of 916089537990 is 99735980619.

It is a super-2 number, since 2×916089537990² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916089537991) 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, 1388014122 + ... + 1388014781.

It is an arithmetic number, because the mean of its divisors is an integer number (74952780408).

Almost surely, 2^916089537990 is an apocalyptic number.

916089537990 is an abundant number, since it is smaller than the sum of its proper divisors (1482399435066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

916089537990 is a wasteful number, since it uses less digits than its factorization.

916089537990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776028924.

The product of its (nonzero) digits is 33067440, while the sum is 66.

The spelling of 916089537990 in words is "nine hundred sixteen billion, eighty-nine million, five hundred thirty-seven thousand, nine hundred ninety".