2161151261535 has 64 divisors (see below), whose sum is σ = 4058970780672. Its totient is φ = 961171577856.

The previous prime is 2161151261531. The next prime is 2161151261569. The reversal of 2161151261535 is 5351621511612.

It is not a de Polignac number, because 2161151261535 - 2² = 2161151261531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2161151261493 and 2161151261502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161151261531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84186772 + ... + 84212438.

It is an arithmetic number, because the mean of its divisors is an integer number (63421418448).

Almost surely, 2^{2161151261535} is an apocalyptic number.

2161151261535 is a deficient number, since it is larger than the sum of its proper divisors (1897819519137).

2161151261535 is a wasteful number, since it uses less digits than its factorization.

2161151261535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47392.

The product of its digits is 54000, while the sum is 39.

The spelling of 2161151261535 in words is "two trillion, one hundred sixty-one billion, one hundred fifty-one million, two hundred sixty-one thousand, five hundred thirty-five".