1651367640016 has 20 divisors (see below), whose sum is σ = 3251976030724. Its totient is φ = 812148019200.

The previous prime is 1651367639993. The next prime is 1651367640037. The reversal of 1651367640016 is 6100467631561.

It can be written as a sum of positive squares in 2 ways, for example, as 797813385616 + 853554254400 = 893204^2 + 923880^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845986545 + ... + 845988496.

Almost surely, 2^{1651367640016} is an apocalyptic number.

1651367640016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1651367640016 is a deficient number, since it is larger than the sum of its proper divisors (1600608390708).

1651367640016 is a wasteful number, since it uses less digits than its factorization.

1651367640016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691975110 (or 1691975104 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 1651367640016 in words is "one trillion, six hundred fifty-one billion, three hundred sixty-seven million, six hundred forty thousand, sixteen".