162642511705 has 16 divisors (see below), whose sum is σ = 206751746880. Its totient is φ = 122480759232.

The previous prime is 162642511697. The next prime is 162642511729. The reversal of 162642511705 is 507115246261.

It is a cyclic number.

It is not a de Polignac number, because 162642511705 - 2³ = 162642511697 is a prime.

It is a super-2 number, since 2×162642511705² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5437399 + ... + 5467228.

It is an arithmetic number, because the mean of its divisors is an integer number (12921984180).

Almost surely, 2^162642511705 is an apocalyptic number.

It is an amenable number.

162642511705 is a deficient number, since it is larger than the sum of its proper divisors (44109235175).

162642511705 is a wasteful number, since it uses less digits than its factorization.

162642511705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10904808.

The product of its (nonzero) digits is 100800, while the sum is 40.

Adding to 162642511705 its reverse (507115246261), we get a palindrome (669757757966).

The spelling of 162642511705 in words is "one hundred sixty-two billion, six hundred forty-two million, five hundred eleven thousand, seven hundred five".