145153315550 has 48 divisors (see below), whose sum is σ = 274491029664. Its totient is φ = 57092880000.

The previous prime is 145153315507. The next prime is 145153315577. The reversal of 145153315550 is 55513351541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19244780 + ... + 19252320.

It is an arithmetic number, because the mean of its divisors is an integer number (5718563118).

Almost surely, 2^145153315550 is an apocalyptic number.

145153315550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145153315550 is a deficient number, since it is larger than the sum of its proper divisors (129337714114).

145153315550 is a wasteful number, since it uses less digits than its factorization.

145153315550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13925 (or 13920 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 145153315550 in words is "one hundred forty-five billion, one hundred fifty-three million, three hundred fifteen thousand, five hundred fifty".