45737663271440 has 160 divisors (see below), whose sum is σ = 126853765410816. Its totient is φ = 14995152944640.

The previous prime is 45737663271439. The next prime is 45737663271449. The reversal of 45737663271440 is 4417236673754.

It is a self number, because there is not a number n which added to its sum of digits gives 45737663271440.

It is not an unprimeable number, because it can be changed into a prime (45737663271449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42265925 + ... + 43334555.

Almost surely, 2^{45737663271440} is an apocalyptic number.

45737663271440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45737663271440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63426882705408).

45737663271440 is an abundant number, since it is smaller than the sum of its proper divisors (81116102139376).

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

45737663271440 is a wasteful number, since it uses less digits than its factorization.

45737663271440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071997 (or 1071991 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 59.

The spelling of 45737663271440 in words is "forty-five trillion, seven hundred thirty-seven billion, six hundred sixty-three million, two hundred seventy-one thousand, four hundred forty".