45515150511778 has 16 divisors (see below), whose sum is σ = 74344165992000. Its totient is φ = 20816366476752.

The previous prime is 45515150511773. The next prime is 45515150511841. The reversal of 45515150511778 is 87711505151554.

It is a super-2 number, since 2×45515150511778² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45515150511773) 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, 20651156118 + ... + 20651158321.

It is an arithmetic number, because the mean of its divisors is an integer number (4646510374500).

Almost surely, 2^{45515150511778} is an apocalyptic number.

45515150511778 is a deficient number, since it is larger than the sum of its proper divisors (28829015480222).

45515150511778 is a wasteful number, since it uses less digits than its factorization.

45515150511778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41302314489.

The product of its (nonzero) digits is 4900000, while the sum is 55.

The spelling of 45515150511778 in words is "forty-five trillion, five hundred fifteen billion, one hundred fifty million, five hundred eleven thousand, seven hundred seventy-eight".