145317515076 has 120 divisors (see below), whose sum is σ = 391638577176. Its totient is φ = 46956049920.

The previous prime is 145317515051. The next prime is 145317515089. The reversal of 145317515076 is 670515713541.

145317515076 is a `hidden beast` number, since 1 + 4 + 53 + 17 + 515 + 0 + 76 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16945790976 + 128371724100 = 130176^2 + 358290^2 .

It is a super-2 number, since 2×145317515076² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2050750 + ... + 2120426.

Almost surely, 2^145317515076 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 145317515076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195819288588).

145317515076 is an abundant number, since it is smaller than the sum of its proper divisors (246321062100).

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

145317515076 is a wasteful number, since it uses less digits than its factorization.

145317515076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69891 (or 69880 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 45.

The spelling of 145317515076 in words is "one hundred forty-five billion, three hundred seventeen million, five hundred fifteen thousand, seventy-six".