10661560357 has 16 divisors (see below), whose sum is σ = 12436778880. Its totient is φ = 8951298048.

The previous prime is 10661560237. The next prime is 10661560379. The reversal of 10661560357 is 75306516601.

It is not a de Polignac number, because 10661560357 - 2³¹ = 8514076709 is a prime.

It is a super-2 number, since 2×10661560357² (a number of 21 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 (10661560157) 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, 13308 + ... + 146629.

It is an arithmetic number, because the mean of its divisors is an integer number (777298680).

Almost surely, 2^10661560357 is an apocalyptic number.

It is an amenable number.

10661560357 is a deficient number, since it is larger than the sum of its proper divisors (1775218523).

10661560357 is a wasteful number, since it uses less digits than its factorization.

10661560357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160140.

The product of its (nonzero) digits is 113400, while the sum is 40.

The spelling of 10661560357 in words is "ten billion, six hundred sixty-one million, five hundred sixty thousand, three hundred fifty-seven".