149200715665 has 16 divisors (see below), whose sum is σ = 180407768400. Its totient is φ = 118450769920.

The previous prime is 149200715663. The next prime is 149200715687. The reversal of 149200715665 is 566517002941.

It can be written as a sum of positive squares in 8 ways, for example, as 1827648001 + 147373067664 = 42751^2 + 383892^2 .

It is not a de Polignac number, because 149200715665 - 2¹ = 149200715663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149200715663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 725985 + ... + 908545.

It is an arithmetic number, because the mean of its divisors is an integer number (11275485525).

Almost surely, 2^149200715665 is an apocalyptic number.

It is an amenable number.

149200715665 is a deficient number, since it is larger than the sum of its proper divisors (31207052735).

149200715665 is a wasteful number, since it uses less digits than its factorization.

149200715665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183812.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 149200715665 in words is "one hundred forty-nine billion, two hundred million, seven hundred fifteen thousand, six hundred sixty-five".