1173221970455 has 16 divisors (see below), whose sum is σ = 1427755118400. Its totient is φ = 925319512320.

The previous prime is 1173221970439. The next prime is 1173221970461. The reversal of 1173221970455 is 5540791223711.

It is not a de Polignac number, because 1173221970455 - 2⁴ = 1173221970439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10883561 + ... + 10990829.

It is an arithmetic number, because the mean of its divisors is an integer number (89234694900).

Almost surely, 2^{1173221970455} is an apocalyptic number.

1173221970455 is a deficient number, since it is larger than the sum of its proper divisors (254533147945).

1173221970455 is a wasteful number, since it uses less digits than its factorization.

1173221970455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138154.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 1173221970455 in words is "one trillion, one hundred seventy-three billion, two hundred twenty-one million, nine hundred seventy thousand, four hundred fifty-five".