161214535635 has 16 divisors (see below), whose sum is σ = 257948265120. Its totient is φ = 85979416320.

The previous prime is 161214535631. The next prime is 161214535679. The reversal of 161214535635 is 536535412161.

It is a happy number.

It is not a de Polignac number, because 161214535635 - 2² = 161214535631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161214535631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330671 + ... + 1446759.

It is an arithmetic number, because the mean of its divisors is an integer number (16121766570).

Almost surely, 2^161214535635 is an apocalyptic number.

161214535635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161214535635 is a deficient number, since it is larger than the sum of its proper divisors (96733729485).

161214535635 is a wasteful number, since it uses less digits than its factorization.

161214535635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208678.

The product of its digits is 324000, while the sum is 42.

Adding to 161214535635 its reverse (536535412161), we get a palindrome (697749947796).

The spelling of 161214535635 in words is "one hundred sixty-one billion, two hundred fourteen million, five hundred thirty-five thousand, six hundred thirty-five".