10720605657 has 8 divisors (see below), whose sum is σ = 15046464160. Its totient is φ = 6770908800.

The previous prime is 10720605629. The next prime is 10720605689. The reversal of 10720605657 is 75650602701.

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

It is not a de Polignac number, because 10720605657 - 2⁶ = 10720605593 is a prime.

It is a super-2 number, since 2×10720605657² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10720605607) 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, 94040344 + ... + 94040457.

It is an arithmetic number, because the mean of its divisors is an integer number (1880808020).

Almost surely, 2^10720605657 is an apocalyptic number.

It is an amenable number.

10720605657 is a deficient number, since it is larger than the sum of its proper divisors (4325858503).

10720605657 is a wasteful number, since it uses less digits than its factorization.

10720605657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188080823.

The product of its (nonzero) digits is 88200, while the sum is 39.

The spelling of 10720605657 in words is "ten billion, seven hundred twenty million, six hundred five thousand, six hundred fifty-seven".