106240431005661 has 16 divisors (see below), whose sum is σ = 145531591778304. Its totient is φ = 68889406849344.

The previous prime is 106240431005651. The next prime is 106240431005707. The reversal of 106240431005661 is 166500134042601.

It is not a de Polignac number, because 106240431005661 - 2⁵ = 106240431005629 is a prime.

It is a super-2 number, since 2×106240431005661² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106240431005651) 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, 161511645 + ... + 162168098.

It is an arithmetic number, because the mean of its divisors is an integer number (9095724486144).

Almost surely, 2^{106240431005661} is an apocalyptic number.

It is an amenable number.

106240431005661 is a deficient number, since it is larger than the sum of its proper divisors (39291160772643).

106240431005661 is a wasteful number, since it uses less digits than its factorization.

106240431005661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323682740.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 106240431005661 in words is "one hundred six trillion, two hundred forty billion, four hundred thirty-one million, five thousand, six hundred sixty-one".