10356121657 has 16 divisors (see below), whose sum is σ = 12385815552. Its totient is φ = 8466218640.

The previous prime is 10356121651. The next prime is 10356121663. The reversal of 10356121657 is 75612165301.

It is an interprime number because it is at equal distance from previous prime (10356121651) and next prime (10356121663).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10356121657 is a prime.

It is a super-3 number, since 3×10356121657³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10356121651) 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, 36819 + ... + 148552.

It is an arithmetic number, because the mean of its divisors is an integer number (774113472).

Almost surely, 2^10356121657 is an apocalyptic number.

It is an amenable number.

10356121657 is a deficient number, since it is larger than the sum of its proper divisors (2029693895).

10356121657 is a wasteful number, since it uses less digits than its factorization.

10356121657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185748.

The product of its (nonzero) digits is 37800, while the sum is 37.

Adding to 10356121657 its reverse (75612165301), we get a palindrome (85968286958).

The spelling of 10356121657 in words is "ten billion, three hundred fifty-six million, one hundred twenty-one thousand, six hundred fifty-seven".