145631527221080 has 64 divisors (see below), whose sum is σ = 338833334062080. Its totient is φ = 56274766473600.

The previous prime is 145631527221077. The next prime is 145631527221109. The reversal of 145631527221080 is 80122725136541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102133274 + ... + 103549353.

It is an arithmetic number, because the mean of its divisors is an integer number (5294270844720).

Almost surely, 2^{145631527221080} is an apocalyptic number.

145631527221080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145631527221080 is an abundant number, since it is smaller than the sum of its proper divisors (193201806841000).

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

145631527221080 is a wasteful number, since it uses less digits than its factorization.

145631527221080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205683240 (or 205683236 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 145631527221080 in words is "one hundred forty-five trillion, six hundred thirty-one billion, five hundred twenty-seven million, two hundred twenty-one thousand, eighty".