151517990399 has 4 divisors (see below), whose sum is σ = 158105729136. Its totient is φ = 144930251664.

The previous prime is 151517990347. The next prime is 151517990417. The reversal of 151517990399 is 993099715151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151517990399 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 (151517990339) 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, 3293869334 + ... + 3293869379.

It is an arithmetic number, because the mean of its divisors is an integer number (39526432284).

Almost surely, 2^151517990399 is an apocalyptic number.

151517990399 is a deficient number, since it is larger than the sum of its proper divisors (6587738737).

151517990399 is an equidigital number, since it uses as much as digits as its factorization.

151517990399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6587738736.

The product of its (nonzero) digits is 3444525, while the sum is 59.

The spelling of 151517990399 in words is "one hundred fifty-one billion, five hundred seventeen million, nine hundred ninety thousand, three hundred ninety-nine".