553158187640 has 32 divisors (see below), whose sum is σ = 1317818036880. Its totient is φ = 208247788032.

The previous prime is 553158187613. The next prime is 553158187649. The reversal of 553158187640 is 46781851355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553158187649) 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, 406733282 + ... + 406734641.

Almost surely, 2^553158187640 is an apocalyptic number.

It is an amenable number.

553158187640 is an abundant number, since it is smaller than the sum of its proper divisors (764659849240).

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

553158187640 is a wasteful number, since it uses less digits than its factorization.

553158187640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813467951 (or 813467947 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 53.

The spelling of 553158187640 in words is "five hundred fifty-three billion, one hundred fifty-eight million, one hundred eighty-seven thousand, six hundred forty".