1645152617076 has 24 divisors (see below), whose sum is σ = 3838810261440. Its totient is φ = 548366945472.

The previous prime is 1645152617057. The next prime is 1645152617077. The reversal of 1645152617076 is 6707162515461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1645152617077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1757416 + ... + 2525631.

It is an arithmetic number, because the mean of its divisors is an integer number (159950427560).

Almost surely, 2^{1645152617076} is an apocalyptic number.

It is an amenable number.

1645152617076 is an abundant number, since it is smaller than the sum of its proper divisors (2193657644364).

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

1645152617076 is a wasteful number, since it uses less digits than its factorization.

1645152617076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315063 (or 4315061 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 1645152617076 in words is "one trillion, six hundred forty-five billion, one hundred fifty-two million, six hundred seventeen thousand, seventy-six".