45199815156 has 192 divisors, whose sum is σ = 123421858560. Its totient is φ = 14288762880.

The previous prime is 45199815151. The next prime is 45199815163. The reversal of 45199815156 is 65151899154.

It is a happy number.

45199815156 is a `hidden beast` number, since 45 + 1 + 9 + 9 + 81 + 515 + 6 = 666.

45199815156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (45199815151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52741480 + ... + 52742336.

It is an arithmetic number, because the mean of its divisors is an integer number (642822180).

Almost surely, 2^45199815156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45199815156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61710929280).

45199815156 is an abundant number, since it is smaller than the sum of its proper divisors (78222043404).

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

45199815156 is a wasteful number, since it uses less digits than its factorization.

45199815156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1223 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 54.

The spelling of 45199815156 in words is "forty-five billion, one hundred ninety-nine million, eight hundred fifteen thousand, one hundred fifty-six".