1616431671424 has 32 divisors (see below), whose sum is σ = 3360245192640. Its totient is φ = 773076015360.

The previous prime is 1616431671403. The next prime is 1616431671431. The reversal of 1616431671424 is 4241761346161.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1616431671424² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274526892 + ... + 274532779.

It is an arithmetic number, because the mean of its divisors is an integer number (105007662270).

Almost surely, 2^{1616431671424} is an apocalyptic number.

It is an amenable number.

1616431671424 is an abundant number, since it is smaller than the sum of its proper divisors (1743813521216).

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

1616431671424 is an equidigital number, since it uses as much as digits as its factorization.

1616431671424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549059708 (or 549059696 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The spelling of 1616431671424 in words is "one trillion, six hundred sixteen billion, four hundred thirty-one million, six hundred seventy-one thousand, four hundred twenty-four".