103621551057 has 24 divisors (see below), whose sum is σ = 159021593640. Its totient is φ = 64896249600.

The previous prime is 103621551053. The next prime is 103621551073. The reversal of 103621551057 is 750155126301.

It is a happy number.

103621551057 is a `hidden beast` number, since 1 + 0 + 36 + 21 + 551 + 0 + 57 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7849251216 + 95772299841 = 88596^2 + 309471^2 .

It is not a de Polignac number, because 103621551057 - 2² = 103621551053 is a prime.

It is a super-3 number, since 3×103621551057³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (103621551053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5355444 + ... + 5374757.

It is an arithmetic number, because the mean of its divisors is an integer number (6625899735).

Almost surely, 2^103621551057 is an apocalyptic number.

It is an amenable number.

103621551057 is a deficient number, since it is larger than the sum of its proper divisors (55400042583).

103621551057 is a wasteful number, since it uses less digits than its factorization.

103621551057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10730273 (or 10730270 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

Adding to 103621551057 its reverse (750155126301), we get a palindrome (853776677358).

The spelling of 103621551057 in words is "one hundred three billion, six hundred twenty-one million, five hundred fifty-one thousand, fifty-seven".