45557523198 has 80 divisors (see below), whose sum is σ = 111863195136. Its totient is φ = 13743282960.

The previous prime is 45557523191. The next prime is 45557523227. The reversal of 45557523198 is 89132575554.

45557523198 is a `hidden beast` number, since 4 + 5 + 557 + 52 + 31 + 9 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45557523191) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 340065 + ... + 454707.

Almost surely, 2^45557523198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45557523198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55931597568).

45557523198 is an abundant number, since it is smaller than the sum of its proper divisors (66305671938).

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

45557523198 is a wasteful number, since it uses less digits than its factorization.

45557523198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114891 (or 114882 counting only the distinct ones).

The product of its digits is 7560000, while the sum is 54.

The spelling of 45557523198 in words is "forty-five billion, five hundred fifty-seven million, five hundred twenty-three thousand, one hundred ninety-eight".