149701721715 has 192 divisors, whose sum is σ = 347769676800. Its totient is φ = 57781527552.

The previous prime is 149701721681. The next prime is 149701721779. The reversal of 149701721715 is 517127107941.

It is not a de Polignac number, because 149701721715 - 2¹⁵ = 149701688947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2223172 + ... + 2289518.

It is an arithmetic number, because the mean of its divisors is an integer number (1811300400).

Almost surely, 2^149701721715 is an apocalyptic number.

149701721715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149701721715 is an abundant number, since it is smaller than the sum of its proper divisors (198067955085).

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

149701721715 is a wasteful number, since it uses less digits than its factorization.

149701721715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66426 (or 66423 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 45.

The spelling of 149701721715 in words is "one hundred forty-nine billion, seven hundred one million, seven hundred twenty-one thousand, seven hundred fifteen".