153939940971630 has 256 divisors, whose sum is σ = 447250201344000. Its totient is φ = 33449724887040.

The previous prime is 153939940971599. The next prime is 153939940971671. The reversal of 153939940971630 is 36179049939351.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26942946 + ... + 32152794.

It is an arithmetic number, because the mean of its divisors is an integer number (1747071099000).

Almost surely, 2^{153939940971630} is an apocalyptic number.

153939940971630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 153939940971630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223625100672000).

153939940971630 is an abundant number, since it is smaller than the sum of its proper divisors (293310260372370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153939940971630 is a wasteful number, since it uses less digits than its factorization.

153939940971630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210139.

The product of its (nonzero) digits is 148803480, while the sum is 69.

The spelling of 153939940971630 in words is "one hundred fifty-three trillion, nine hundred thirty-nine billion, nine hundred forty million, nine hundred seventy-one thousand, six hundred thirty".