1145120555198 has 32 divisors (see below), whose sum is σ = 1864111974912. Its totient is φ = 526160527200.

The previous prime is 1145120555197. The next prime is 1145120555279. The reversal of 1145120555198 is 8915550215411.

It is a super-2 number, since 2×1145120555198² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145120555191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4624658 + ... + 4865973.

It is an arithmetic number, because the mean of its divisors is an integer number (58253499216).

Almost surely, 2^{1145120555198} is an apocalyptic number.

1145120555198 is a deficient number, since it is larger than the sum of its proper divisors (718991419714).

1145120555198 is a wasteful number, since it uses less digits than its factorization.

1145120555198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9490760.

The product of its (nonzero) digits is 360000, while the sum is 47.

The spelling of 1145120555198 in words is "one trillion, one hundred forty-five billion, one hundred twenty million, five hundred fifty-five thousand, one hundred ninety-eight".