145455272800 has 36 divisors (see below), whose sum is σ = 355092686676. Its totient is φ = 58182108800.

The previous prime is 145455272773. The next prime is 145455272803. The reversal of 145455272800 is 8272554541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145455272803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90908746 + ... + 90910345.

It is an arithmetic number, because the mean of its divisors is an integer number (9863685741).

Almost surely, 2^145455272800 is an apocalyptic number.

145455272800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145455272800 is an abundant number, since it is smaller than the sum of its proper divisors (209637413876).

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

145455272800 is a wasteful number, since it uses less digits than its factorization.

145455272800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181819111 (or 181819098 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 43.

The spelling of 145455272800 in words is "one hundred forty-five billion, four hundred fifty-five million, two hundred seventy-two thousand, eight hundred".