1234653167856 has 80 divisors (see below), whose sum is σ = 3245147297280. Its totient is φ = 404430174720.

The previous prime is 1234653167791. The next prime is 1234653167857. The reversal of 1234653167856 is 6587613564321.

It is a super-2 number, since 2×1234653167856² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1234653167796 and 1234653167805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234653167857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190200 + ... + 1582871.

It is an arithmetic number, because the mean of its divisors is an integer number (40564341216).

Almost surely, 2^{1234653167856} is an apocalyptic number.

1234653167856 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 1234653167856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1622573648640).

1234653167856 is an abundant number, since it is smaller than the sum of its proper divisors (2010494129424).

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

1234653167856 is a wasteful number, since it uses less digits than its factorization.

1234653167856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773334 (or 1773328 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 57.

The spelling of 1234653167856 in words is "one trillion, two hundred thirty-four billion, six hundred fifty-three million, one hundred sixty-seven thousand, eight hundred fifty-six".