1157445545501 has 4 divisors (see below), whose sum is σ = 1322794909152. Its totient is φ = 992096181852.

The previous prime is 1157445545489. The next prime is 1157445545507. The reversal of 1157445545501 is 1055455447511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1157445545501 - 2³⁴ = 1140265676317 is a prime.

It is a super-2 number, since 2×1157445545501² (a number of 25 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 (1157445545507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82674681815 + ... + 82674681828.

It is an arithmetic number, because the mean of its divisors is an integer number (330698727288).

Almost surely, 2^{1157445545501} is an apocalyptic number.

It is an amenable number.

1157445545501 is a deficient number, since it is larger than the sum of its proper divisors (165349363651).

1157445545501 is an equidigital number, since it uses as much as digits as its factorization.

1157445545501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165349363650.

The product of its (nonzero) digits is 1400000, while the sum is 47.

The spelling of 1157445545501 in words is "one trillion, one hundred fifty-seven billion, four hundred forty-five million, five hundred forty-five thousand, five hundred one".