106021561631 has 8 divisors (see below), whose sum is σ = 106154075664. Its totient is φ = 105889094080.

The previous prime is 106021561579. The next prime is 106021561637. The reversal of 106021561631 is 136165120601.

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 106021561631 - 2⁶ = 106021561567 is a prime.

It is a super-2 number, since 2×106021561631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106021561637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7184921 + ... + 7199661.

It is an arithmetic number, because the mean of its divisors is an integer number (13269259458).

Almost surely, 2^106021561631 is an apocalyptic number.

106021561631 is a deficient number, since it is larger than the sum of its proper divisors (132514033).

106021561631 is an equidigital number, since it uses as much as digits as its factorization.

106021561631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23241.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 106021561631 in words is "one hundred six billion, twenty-one million, five hundred sixty-one thousand, six hundred thirty-one".