1616334420654 has 48 divisors (see below), whose sum is σ = 3822909242880. Its totient is φ = 510421393080.

The previous prime is 1616334420653. The next prime is 1616334420667. The reversal of 1616334420654 is 4560244336161.

1616334420654 is a `hidden beast` number, since 1 + 6 + 1 + 633 + 4 + 4 + 2 + 0 + 6 + 5 + 4 = 666.

It is a super-2 number, since 2×1616334420654² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616334420653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87511582 + ... + 87530049.

It is an arithmetic number, because the mean of its divisors is an integer number (79643942560).

Almost surely, 2^{1616334420654} is an apocalyptic number.

1616334420654 is an abundant number, since it is smaller than the sum of its proper divisors (2206574822226).

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

1616334420654 is a wasteful number, since it uses less digits than its factorization.

1616334420654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175041667 (or 175041655 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 1616334420654 in words is "one trillion, six hundred sixteen billion, three hundred thirty-four million, four hundred twenty thousand, six hundred fifty-four".