916320900181 has 4 divisors (see below), whose sum is σ = 964548316000. Its totient is φ = 868093484364.

The previous prime is 916320900169. The next prime is 916320900193. The reversal of 916320900181 is 181009023619.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (916320900169) and next prime (916320900193).

It is a de Polignac number, because none of the positive numbers 2^k-916320900181 is a prime.

It is a super-2 number, since 2×916320900181² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916320900581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24113707881 + ... + 24113707918.

It is an arithmetic number, because the mean of its divisors is an integer number (241137079000).

Almost surely, 2^916320900181 is an apocalyptic number.

It is an amenable number.

916320900181 is a deficient number, since it is larger than the sum of its proper divisors (48227415819).

916320900181 is a wasteful number, since it uses less digits than its factorization.

916320900181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48227415818.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 916320900181 in words is "nine hundred sixteen billion, three hundred twenty million, nine hundred thousand, one hundred eighty-one".