149783215940 has 24 divisors (see below), whose sum is σ = 317598590400. Its totient is φ = 59331603168.

The previous prime is 149783215931. The next prime is 149783215943. The reversal of 149783215940 is 49512387941.

It is not an unprimeable number, because it can be changed into a prime (149783215943) 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, 36353090 + ... + 36357209.

It is an arithmetic number, because the mean of its divisors is an integer number (13233274600).

Almost surely, 2^149783215940 is an apocalyptic number.

149783215940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149783215940 is an abundant number, since it is smaller than the sum of its proper divisors (167815374460).

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

149783215940 is a wasteful number, since it uses less digits than its factorization.

149783215940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72710411 (or 72710409 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 149783215940 in words is "one hundred forty-nine billion, seven hundred eighty-three million, two hundred fifteen thousand, nine hundred forty".