2157466250045 has 12 divisors (see below), whose sum is σ = 2645215763484. Its totient is φ = 1689250161600.

The previous prime is 2157466250033. The next prime is 2157466250053. The reversal of 2157466250045 is 5400526647512.

It can be written as a sum of positive squares in 2 ways, for example, as 1716673827961 + 440792422084 = 1310219^2 + 663922^2 .

It is not a de Polignac number, because 2157466250045 - 2⁴ = 2157466250029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97656056 + ... + 97678145.

It is an arithmetic number, because the mean of its divisors is an integer number (220434646957).

Almost surely, 2^{2157466250045} is an apocalyptic number.

It is an amenable number.

2157466250045 is a deficient number, since it is larger than the sum of its proper divisors (487749513439).

2157466250045 is an equidigital number, since it uses as much as digits as its factorization.

2157466250045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195334300 (or 195334253 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 2157466250045 in words is "two trillion, one hundred fifty-seven billion, four hundred sixty-six million, two hundred fifty thousand, forty-five".