45540026640 has 120 divisors (see below), whose sum is σ = 152978155200. Its totient is φ = 12140865792.

The previous prime is 45540026603. The next prime is 45540026699. The reversal of 45540026640 is 4662004554.

45540026640 is a `hidden beast` number, since 4 + 5 + 5 + 4 + 0 + 0 + 2 + 6 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-3 number, since 3×45540026640³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 45540026595 and 45540026604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4504311 + ... + 4514409.

It is an arithmetic number, because the mean of its divisors is an integer number (1274817960).

Almost surely, 2^45540026640 is an apocalyptic number.

45540026640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45540026640 is an abundant number, since it is smaller than the sum of its proper divisors (107438128560).

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

45540026640 is a wasteful number, since it uses less digits than its factorization.

45540026640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16381 (or 16372 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 45540026640 in words is "forty-five billion, five hundred forty million, twenty-six thousand, six hundred forty".