1618119142656 has 72 divisors (see below), whose sum is σ = 4309236509760. Its totient is φ = 539037413376.

The previous prime is 1618119142649. The next prime is 1618119142687. The reversal of 1618119142656 is 6562419118161.

It is a junction number, because it is equal to n+sod(n) for n = 1618119142599 and 1618119142608.

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, 580981 + ... + 1890443.

It is an arithmetic number, because the mean of its divisors is an integer number (59850507080).

Almost surely, 2^{1618119142656} is an apocalyptic number.

1618119142656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1618119142656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2154618254880).

1618119142656 is an abundant number, since it is smaller than the sum of its proper divisors (2691117367104).

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

1618119142656 is a wasteful number, since it uses less digits than its factorization.

1618119142656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311091 (or 1311077 counting only the distinct ones).

The product of its digits is 622080, while the sum is 51.

The spelling of 1618119142656 in words is "one trillion, six hundred eighteen billion, one hundred nineteen million, one hundred forty-two thousand, six hundred fifty-six".