1651550161616 has 20 divisors (see below), whose sum is σ = 3200425513824. Its totient is φ = 825633900000.

The previous prime is 1651550161609. The next prime is 1651550161649. The reversal of 1651550161616 is 6161610551561.

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, 8727260 + ... + 8914491.

Almost surely, 2^{1651550161616} is an apocalyptic number.

1651550161616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1651550161616 is a deficient number, since it is larger than the sum of its proper divisors (1548875352208).

1651550161616 is a wasteful number, since it uses less digits than its factorization.

1651550161616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17647610 (or 17647604 counting only the distinct ones).

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

The spelling of 1651550161616 in words is "one trillion, six hundred fifty-one billion, five hundred fifty million, one hundred sixty-one thousand, six hundred sixteen".