1616615561051 has 8 divisors (see below), whose sum is σ = 1801800625680. Its totient is φ = 1441440499968.

The previous prime is 1616615561009. The next prime is 1616615561059. The reversal of 1616615561051 is 1501655166161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1616615561051 is a prime.

It is a super-2 number, since 2×1616615561051² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1616615560993 and 1616615561011.

It is not an unprimeable number, because it can be changed into a prime (1616615561059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2502500546 + ... + 2502501191.

It is an arithmetic number, because the mean of its divisors is an integer number (225225078210).

Almost surely, 2^{1616615561051} is an apocalyptic number.

1616615561051 is a deficient number, since it is larger than the sum of its proper divisors (185185064629).

1616615561051 is a wasteful number, since it uses less digits than its factorization.

1616615561051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005001773.

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 1616615561051 in words is "one trillion, six hundred sixteen billion, six hundred fifteen million, five hundred sixty-one thousand, fifty-one".