145343362640 has 160 divisors (see below), whose sum is σ = 392496378624. Its totient is φ = 49021378560.

The previous prime is 145343362631. The next prime is 145343362657. The reversal of 145343362640 is 46263343541.

It is a super-2 number, since 2×145343362640² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33052922 + ... + 33057318.

Almost surely, 2^145343362640 is an apocalyptic number.

145343362640 is a gapful number since it is divisible by the number (10) 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 145343362640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196248189312).

145343362640 is an abundant number, since it is smaller than the sum of its proper divisors (247153015984).

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

145343362640 is a wasteful number, since it uses less digits than its factorization.

145343362640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5365 (or 5359 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 145343362640 in words is "one hundred forty-five billion, three hundred forty-three million, three hundred sixty-two thousand, six hundred forty".