1641611153516 has 12 divisors (see below), whose sum is σ = 2898242701032. Its totient is φ = 813541810368.

The previous prime is 1641611153447. The next prime is 1641611153519. The reversal of 1641611153516 is 6153511161461.

It is not an unprimeable number, because it can be changed into a prime (1641611153519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1815941090 + ... + 1815941993.

It is an arithmetic number, because the mean of its divisors is an integer number (241520225086).

Almost surely, 2^{1641611153516} is an apocalyptic number.

It is an amenable number.

1641611153516 is a deficient number, since it is larger than the sum of its proper divisors (1256631547516).

1641611153516 is a wasteful number, since it uses less digits than its factorization.

1641611153516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631883200 (or 3631883198 counting only the distinct ones).

The product of its digits is 64800, while the sum is 41.

The spelling of 1641611153516 in words is "one trillion, six hundred forty-one billion, six hundred eleven million, one hundred fifty-three thousand, five hundred sixteen".