149877777552 has 40 divisors (see below), whose sum is σ = 409959805536. Its totient is φ = 47020478976.

The previous prime is 149877777547. The next prime is 149877777559. The reversal of 149877777552 is 255777778941.

It is a super-2 number, since 2×149877777552² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149877777559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91836058 + ... + 91837689.

Almost surely, 2^149877777552 is an apocalyptic number.

149877777552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149877777552 is an abundant number, since it is smaller than the sum of its proper divisors (260082027984).

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

149877777552 is a wasteful number, since it uses less digits than its factorization.

149877777552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183673775 (or 183673769 counting only the distinct ones).

The product of its digits is 242020800, while the sum is 69.

The spelling of 149877777552 in words is "one hundred forty-nine billion, eight hundred seventy-seven million, seven hundred seventy-seven thousand, five hundred fifty-two".