1612123152645 has 32 divisors (see below), whose sum is σ = 2740576671360. Its totient is φ = 809222565120.

The previous prime is 1612123152641. The next prime is 1612123152691. The reversal of 1612123152645 is 5462513212161.

It is not a de Polignac number, because 1612123152645 - 2² = 1612123152641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612123152641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10864111 + ... + 11011500.

It is an arithmetic number, because the mean of its divisors is an integer number (85643020980).

Almost surely, 2^{1612123152645} is an apocalyptic number.

1612123152645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1612123152645 is a deficient number, since it is larger than the sum of its proper divisors (1128453518715).

1612123152645 is an equidigital number, since it uses as much as digits as its factorization.

1612123152645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21875670 (or 21875636 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The spelling of 1612123152645 in words is "one trillion, six hundred twelve billion, one hundred twenty-three million, one hundred fifty-two thousand, six hundred forty-five".