145105550664 has 64 divisors (see below), whose sum is σ = 366657278400. Its totient is φ = 47849816064.

The previous prime is 145105550599. The next prime is 145105550669. The reversal of 145105550664 is 466055501541.

It is not an unprimeable number, because it can be changed into a prime (145105550669) 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, 6173767 + ... + 6197225.

It is an arithmetic number, because the mean of its divisors is an integer number (5729019975).

Almost surely, 2^145105550664 is an apocalyptic number.

It is an amenable number.

145105550664 is an abundant number, since it is smaller than the sum of its proper divisors (221551727736).

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

145105550664 is a wasteful number, since it uses less digits than its factorization.

145105550664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26222 (or 26218 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 145105550664 in words is "one hundred forty-five billion, one hundred five million, five hundred fifty thousand, six hundred sixty-four".