2251651141633 has 2 divisors, whose sum is σ = 2251651141634. Its totient is φ = 2251651141632.

The previous prime is 2251651141573. The next prime is 2251651141711. The reversal of 2251651141633 is 3361411561522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2078651713009 + 172999428624 = 1441753^2 + 415932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2251651141633 is a prime.

It is not a weakly prime, because it can be changed into another prime (2251651141433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125825570816 + 1125825570817.

It is an arithmetic number, because the mean of its divisors is an integer number (1125825570817).

Almost surely, 2^{2251651141633} is an apocalyptic number.

It is an amenable number.

2251651141633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251651141633 is an equidigital number, since it uses as much as digits as its factorization.

2251651141633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The spelling of 2251651141633 in words is "two trillion, two hundred fifty-one billion, six hundred fifty-one million, one hundred forty-one thousand, six hundred thirty-three".