145446196738 has 16 divisors (see below), whose sum is σ = 225216781056. Its totient is φ = 70374139920.

The previous prime is 145446196729. The next prime is 145446196751. The reversal of 145446196738 is 837691644541.

It is a super-2 number, since 2×145446196738² (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 7 ways as a sum of consecutive naturals, for example, 2156820 + ... + 2223232.

It is an arithmetic number, because the mean of its divisors is an integer number (14076048816).

Almost surely, 2^145446196738 is an apocalyptic number.

145446196738 is a deficient number, since it is larger than the sum of its proper divisors (79770584318).

145446196738 is a wasteful number, since it uses less digits than its factorization.

145446196738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101769.

The product of its digits is 17418240, while the sum is 58.

The spelling of 145446196738 in words is "one hundred forty-five billion, four hundred forty-six million, one hundred ninety-six thousand, seven hundred thirty-eight".