1081413665568 has 48 divisors (see below), whose sum is σ = 3154123193760. Its totient is φ = 360471221568.

The previous prime is 1081413665551. The next prime is 1081413665621. The reversal of 1081413665568 is 8655663141801.

1081413665568 is a `hidden beast` number, since 1 + 0 + 8 + 1 + 4 + 13 + 6 + 65 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 625817230 + ... + 625818957.

It is an arithmetic number, because the mean of its divisors is an integer number (65710899870).

Almost surely, 2^{1081413665568} is an apocalyptic number.

1081413665568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1081413665568 is an abundant number, since it is smaller than the sum of its proper divisors (2072709528192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1081413665568 is a wasteful number, since it uses less digits than its factorization.

1081413665568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251636206 (or 1251636192 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 1081413665568 in words is "one trillion, eighty-one billion, four hundred thirteen million, six hundred sixty-five thousand, five hundred sixty-eight".