1121655670157 has 4 divisors (see below), whose sum is σ = 1223624367456. Its totient is φ = 1019686972860.

The previous prime is 1121655670147. The next prime is 1121655670231. The reversal of 1121655670157 is 7510765561211.

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 1121655670157 - 2⁴⁰ = 22144042381 is a prime.

It is a super-2 number, since 2×1121655670157² (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 (1121655670147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50984348633 + ... + 50984348654.

It is an arithmetic number, because the mean of its divisors is an integer number (305906091864).

Almost surely, 2^{1121655670157} is an apocalyptic number.

It is an amenable number.

1121655670157 is a deficient number, since it is larger than the sum of its proper divisors (101968697299).

1121655670157 is a wasteful number, since it uses less digits than its factorization.

1121655670157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101968697298.

The product of its (nonzero) digits is 441000, while the sum is 47.

The spelling of 1121655670157 in words is "one trillion, one hundred twenty-one billion, six hundred fifty-five million, six hundred seventy thousand, one hundred fifty-seven".