149956605777 has 16 divisors (see below), whose sum is σ = 219582590400. Its totient is φ = 90272836800.

The previous prime is 149956605763. The next prime is 149956605791. The reversal of 149956605777 is 777506659941.

It is an interprime number because it is at equal distance from previous prime (149956605763) and next prime (149956605791).

It is not a de Polignac number, because 149956605777 - 2¹⁶ = 149956540241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149956605977) 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, 15243874 + ... + 15253707.

It is an arithmetic number, because the mean of its divisors is an integer number (13723911900).

Almost surely, 2^149956605777 is an apocalyptic number.

It is an amenable number.

149956605777 is a deficient number, since it is larger than the sum of its proper divisors (69625984623).

149956605777 is a wasteful number, since it uses less digits than its factorization.

149956605777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30497744.

The product of its (nonzero) digits is 100018800, while the sum is 66.

The spelling of 149956605777 in words is "one hundred forty-nine billion, nine hundred fifty-six million, six hundred five thousand, seven hundred seventy-seven".