150993415991 has 6 divisors (see below), whose sum is σ = 165967969776. Its totient is φ = 137266741700.

The previous prime is 150993415987. The next prime is 150993415997. The reversal of 150993415991 is 199514399051.

It is not a de Polignac number, because 150993415991 - 2² = 150993415987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150993415997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 623939615 + ... + 623939856.

It is an arithmetic number, because the mean of its divisors is an integer number (27661328296).

Almost surely, 2^150993415991 is an apocalyptic number.

150993415991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

150993415991 is a deficient number, since it is larger than the sum of its proper divisors (14974553785).

150993415991 is a wasteful number, since it uses less digits than its factorization.

150993415991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247879493 (or 1247879482 counting only the distinct ones).

The product of its (nonzero) digits is 1968300, while the sum is 56.

The spelling of 150993415991 in words is "one hundred fifty billion, nine hundred ninety-three million, four hundred fifteen thousand, nine hundred ninety-one".