1051181638630 has 16 divisors (see below), whose sum is σ = 1894124988720. Its totient is φ = 420028646752.

The previous prime is 1051181638621. The next prime is 1051181638643. The reversal of 1051181638630 is 368361811501.

It is a super-2 number, since 2×1051181638630² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55491145 + ... + 55510084.

It is an arithmetic number, because the mean of its divisors is an integer number (118382811795).

Almost surely, 2^{1051181638630} is an apocalyptic number.

1051181638630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1051181638630 is a deficient number, since it is larger than the sum of its proper divisors (842943350090).

1051181638630 is a wasteful number, since it uses less digits than its factorization.

1051181638630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111002183.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 1051181638630 in words is "one trillion, fifty-one billion, one hundred eighty-one million, six hundred thirty-eight thousand, six hundred thirty".