162100001261 has 8 divisors (see below), whose sum is σ = 176855828544. Its totient is φ = 147347417920.

The previous prime is 162100001227. The next prime is 162100001341.

162100001261 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 162100001261 - 2¹⁴ = 162099984877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162100061261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705905 + ... + 906918.

It is an arithmetic number, because the mean of its divisors is an integer number (22106978568).

Almost surely, 2^162100001261 is an apocalyptic number.

162100001261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

162100001261 is a deficient number, since it is larger than the sum of its proper divisors (14755827283).

162100001261 is a wasteful number, since it uses less digits than its factorization.

162100001261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621971.

The product of its (nonzero) digits is 144, while the sum is 20.

It can be divided in two parts, 16210000 and 1261, that added together give a palindrome (16211261).

The spelling of 162100001261 in words is "one hundred sixty-two billion, one hundred million, one thousand, two hundred sixty-one".