145621534336 has 64 divisors (see below), whose sum is σ = 307255022280. Its totient is φ = 68508909568.

The previous prime is 145621534321. The next prime is 145621534343. The reversal of 145621534336 is 633435126541.

It can be written as a sum of positive squares in 4 ways, for example, as 139021596736 + 6599937600 = 372856^2 + 81240^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 145621534292 and 145621534301.

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, 10814520 + ... + 10827976.

Almost surely, 2^145621534336 is an apocalyptic number.

145621534336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145621534336 is an abundant number, since it is smaller than the sum of its proper divisors (161633487944).

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

145621534336 is a wasteful number, since it uses less digits than its factorization.

145621534336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18461 (or 18449 counting only the distinct ones).

The product of its digits is 777600, while the sum is 43.

The spelling of 145621534336 in words is "one hundred forty-five billion, six hundred twenty-one million, five hundred thirty-four thousand, three hundred thirty-six".