145944434546 has 32 divisors (see below), whose sum is σ = 234700301952. Its totient is φ = 67822700800.

The previous prime is 145944434539. The next prime is 145944434567. The reversal of 145944434546 is 645434449541.

It is a super-2 number, since 2×145944434546² (a number of 23 digits) contains 22 as substring.

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, 1089971 + ... + 1216521.

It is an arithmetic number, because the mean of its divisors is an integer number (7334384436).

Almost surely, 2^145944434546 is an apocalyptic number.

145944434546 is a deficient number, since it is larger than the sum of its proper divisors (88755867406).

145944434546 is a wasteful number, since it uses less digits than its factorization.

145944434546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126994.

The product of its digits is 16588800, while the sum is 53.

The spelling of 145944434546 in words is "one hundred forty-five billion, nine hundred forty-four million, four hundred thirty-four thousand, five hundred forty-six".