550656747940 has 48 divisors (see below), whose sum is σ = 1271827855872. Its totient is φ = 198993465216.

The previous prime is 550656747937. The next prime is 550656747941. The reversal of 550656747940 is 49747656055.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (550656747941) 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, 22518744 + ... + 22543183.

It is an arithmetic number, because the mean of its divisors is an integer number (26496413664).

Almost surely, 2^550656747940 is an apocalyptic number.

It is an amenable number.

550656747940 is an abundant number, since it is smaller than the sum of its proper divisors (721171107932).

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

550656747940 is a wasteful number, since it uses less digits than its factorization.

550656747940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45061996 (or 45061994 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 58.

The spelling of 550656747940 in words is "five hundred fifty billion, six hundred fifty-six million, seven hundred forty-seven thousand, nine hundred forty".