1642081583756 has 24 divisors (see below), whose sum is σ = 2884715248800. Its totient is φ = 817877544192.

The previous prime is 1642081583731. The next prime is 1642081583767. The reversal of 1642081583756 is 6573851802461.

It is a super-2 number, since 2×1642081583756² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40428050 + ... + 40468646.

It is an arithmetic number, because the mean of its divisors is an integer number (120196468700).

Almost surely, 2^{1642081583756} is an apocalyptic number.

It is an amenable number.

1642081583756 is a deficient number, since it is larger than the sum of its proper divisors (1242633665044).

1642081583756 is a wasteful number, since it uses less digits than its factorization.

1642081583756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79313 (or 79311 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 1642081583756 in words is "one trillion, six hundred forty-two billion, eighty-one million, five hundred eighty-three thousand, seven hundred fifty-six".