1051155661051 has 2 divisors, whose sum is σ = 1051155661052. Its totient is φ = 1051155661050.

The previous prime is 1051155661009. The next prime is 1051155661063. The reversal of 1051155661051 is 1501665511501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1051155661051 - 2²⁷ = 1051021443323 is a prime.

It is a super-2 number, since 2×1051155661051² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051155661051.

It is not a weakly prime, because it can be changed into another prime (1051155661091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525577830525 + 525577830526.

It is an arithmetic number, because the mean of its divisors is an integer number (525577830526).

Almost surely, 2^{1051155661051} is an apocalyptic number.

1051155661051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051155661051 is an equidigital number, since it uses as much as digits as its factorization.

1051155661051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 37.

The spelling of 1051155661051 in words is "one trillion, fifty-one billion, one hundred fifty-five million, six hundred sixty-one thousand, fifty-one".