1552974581101 has 2 divisors, whose sum is σ = 1552974581102. Its totient is φ = 1552974581100.

The previous prime is 1552974581083. The next prime is 1552974581107. The reversal of 1552974581101 is 1011854792551.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1516035663076 + 36938918025 = 1231274^2 + 192195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1552974581101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1552974581107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776487290550 + 776487290551.

It is an arithmetic number, because the mean of its divisors is an integer number (776487290551).

Almost surely, 2^{1552974581101} is an apocalyptic number.

It is an amenable number.

1552974581101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552974581101 is an equidigital number, since it uses as much as digits as its factorization.

1552974581101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504000, while the sum is 49.

The spelling of 1552974581101 in words is "one trillion, five hundred fifty-two billion, nine hundred seventy-four million, five hundred eighty-one thousand, one hundred one".