1616627722647 has 96 divisors (see below), whose sum is σ = 2795718343680. Its totient is φ = 823371816960.

The previous prime is 1616627722639. The next prime is 1616627722651. The reversal of 1616627722647 is 7462277266161.

It is not a de Polignac number, because 1616627722647 - 2³ = 1616627722639 is a prime.

It is a super-2 number, since 2×1616627722647² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616627722657) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 172398823 + ... + 172408199.

It is an arithmetic number, because the mean of its divisors is an integer number (29122066080).

Almost surely, 2^{1616627722647} is an apocalyptic number.

1616627722647 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1616627722647 is a deficient number, since it is larger than the sum of its proper divisors (1179090621033).

1616627722647 is a wasteful number, since it uses less digits than its factorization.

1616627722647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13061 (or 13054 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 57.

The spelling of 1616627722647 in words is "one trillion, six hundred sixteen billion, six hundred twenty-seven million, seven hundred twenty-two thousand, six hundred forty-seven".