153990255993 has 8 divisors (see below), whose sum is σ = 234651818688. Its totient is φ = 87994431984.

The previous prime is 153990255989. The next prime is 153990256009. The reversal of 153990255993 is 399552099351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 153990255993 - 2² = 153990255989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (153990255893) 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, 3666434646 + ... + 3666434687.

It is an arithmetic number, because the mean of its divisors is an integer number (29331477336).

Almost surely, 2^153990255993 is an apocalyptic number.

It is an amenable number.

153990255993 is a deficient number, since it is larger than the sum of its proper divisors (80661562695).

153990255993 is an equidigital number, since it uses as much as digits as its factorization.

153990255993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7332869343.

The product of its (nonzero) digits is 14762250, while the sum is 60.

The spelling of 153990255993 in words is "one hundred fifty-three billion, nine hundred ninety million, two hundred fifty-five thousand, nine hundred ninety-three".