2253674457661 has 6 divisors (see below), whose sum is σ = 2477179362686. Its totient is φ = 2048794961400.

The previous prime is 2253674457653. The next prime is 2253674457667. The reversal of 2253674457661 is 1667544763522.

It can be written as a sum of positive squares in only one way, i.e., 2100453098436 + 153221359225 = 1449294^2 + 391435^2 .

It is not a de Polignac number, because 2253674457661 - 2³ = 2253674457653 is a prime.

It is a super-2 number, since 2×2253674457661² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2253674457596 and 2253674457605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2253674457667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9312704250 + ... + 9312704491.

Almost surely, 2^{2253674457661} is an apocalyptic number.

It is an amenable number.

2253674457661 is a deficient number, since it is larger than the sum of its proper divisors (223504905025).

2253674457661 is a wasteful number, since it uses less digits than its factorization.

2253674457661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18625408763 (or 18625408752 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 58.

The spelling of 2253674457661 in words is "two trillion, two hundred fifty-three billion, six hundred seventy-four million, four hundred fifty-seven thousand, six hundred sixty-one".