145656316992 has 112 divisors (see below), whose sum is σ = 400809724160. Its totient is φ = 46641733632.

The previous prime is 145656316969. The next prime is 145656316997. The reversal of 145656316992 is 299613656541.

It is not an unprimeable number, because it can be changed into a prime (145656316997) 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, 431448 + ... + 690984.

Almost surely, 2^145656316992 is an apocalyptic number.

145656316992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145656316992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200404862080).

145656316992 is an abundant number, since it is smaller than the sum of its proper divisors (255153407168).

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

145656316992 is a wasteful number, since it uses less digits than its factorization.

145656316992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259668 (or 259658 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 57.

The spelling of 145656316992 in words is "one hundred forty-five billion, six hundred fifty-six million, three hundred sixteen thousand, nine hundred ninety-two".