106021649657 has 8 divisors (see below), whose sum is σ = 132182836032. Its totient is φ = 82614272400.

The previous prime is 106021649639. The next prime is 106021649677. The reversal of 106021649657 is 756946120601.

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

It is not a de Polignac number, because 106021649657 - 2¹⁴ = 106021633273 is a prime.

It is a super-2 number, since 2×106021649657² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106021649677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688452194 + ... + 688452347.

It is an arithmetic number, because the mean of its divisors is an integer number (16522854504).

Almost surely, 2^106021649657 is an apocalyptic number.

It is an amenable number.

106021649657 is a deficient number, since it is larger than the sum of its proper divisors (26161186375).

106021649657 is a wasteful number, since it uses less digits than its factorization.

106021649657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376904559.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 106021649657 in words is "one hundred six billion, twenty-one million, six hundred forty-nine thousand, six hundred fifty-seven".