145491200552 has 64 divisors (see below), whose sum is σ = 291838075200. Its totient is φ = 67795453440.

The previous prime is 145491200551. The next prime is 145491200567. The reversal of 145491200552 is 255002194541.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (145491200551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7740638 + ... + 7759410.

It is an arithmetic number, because the mean of its divisors is an integer number (4559969925).

Almost surely, 2^145491200552 is an apocalyptic number.

It is an amenable number.

145491200552 is an abundant number, since it is smaller than the sum of its proper divisors (146346874648).

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

145491200552 is a wasteful number, since it uses less digits than its factorization.

145491200552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19626 (or 19622 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 145491200552 in words is "one hundred forty-five billion, four hundred ninety-one million, two hundred thousand, five hundred fifty-two".