149723592520 has 128 divisors (see below), whose sum is σ = 356878368000. Its totient is φ = 56375377920.

The previous prime is 149723592509. The next prime is 149723592617. The reversal of 149723592520 is 25295327941.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140849509 + ... + 140850571.

It is an arithmetic number, because the mean of its divisors is an integer number (2788112250).

Almost surely, 2^149723592520 is an apocalyptic number.

149723592520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149723592520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178439184000).

149723592520 is an abundant number, since it is smaller than the sum of its proper divisors (207154775480).

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

149723592520 is a wasteful number, since it uses less digits than its factorization.

149723592520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103 (or 2099 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 149723592520 in words is "one hundred forty-nine billion, seven hundred twenty-three million, five hundred ninety-two thousand, five hundred twenty".