1157358400561 has 8 divisors (see below), whose sum is σ = 1262655403200. Its totient is φ = 1052075165040.

The previous prime is 1157358400537. The next prime is 1157358400609. The reversal of 1157358400561 is 1650048537511.

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 1157358400561 - 2¹¹ = 1157358398513 is a prime.

It is a super-2 number, since 2×1157358400561² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157358400501) 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, 3265606 + ... + 3602623.

It is an arithmetic number, because the mean of its divisors is an integer number (157831925400).

Almost surely, 2^{1157358400561} is an apocalyptic number.

1157358400561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1157358400561 is a deficient number, since it is larger than the sum of its proper divisors (105297002639).

1157358400561 is a wasteful number, since it uses less digits than its factorization.

1157358400561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6883559.

The product of its (nonzero) digits is 504000, while the sum is 46.

The spelling of 1157358400561 in words is "one trillion, one hundred fifty-seven billion, three hundred fifty-eight million, four hundred thousand, five hundred sixty-one".