153991138995 has 24 divisors (see below), whose sum is σ = 271442012400. Its totient is φ = 80736595776.

The previous prime is 153991138993. The next prime is 153991139041. The reversal of 153991138995 is 599831199351.

153991138995 is a `hidden beast` number, since 1 + 539 + 9 + 1 + 1 + 3 + 8 + 9 + 95 = 666.

It is not a de Polignac number, because 153991138995 - 2¹ = 153991138993 is a prime.

It is a super-2 number, since 2×153991138995² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (153991138993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28997560 + ... + 29002869.

It is an arithmetic number, because the mean of its divisors is an integer number (11310083850).

Almost surely, 2^153991138995 is an apocalyptic number.

153991138995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

153991138995 is a deficient number, since it is larger than the sum of its proper divisors (117450873405).

153991138995 is a wasteful number, since it uses less digits than its factorization.

153991138995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58000499 (or 58000496 counting only the distinct ones).

The product of its digits is 11809800, while the sum is 63.

The spelling of 153991138995 in words is "one hundred fifty-three billion, nine hundred ninety-one million, one hundred thirty-eight thousand, nine hundred ninety-five".