1161015155502 has 32 divisors (see below), whose sum is σ = 2338980483840. Its totient is φ = 384180606720.

The previous prime is 1161015155501. The next prime is 1161015155507. The reversal of 1161015155502 is 2055515101611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161015155501) 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, 8499927 + ... + 8635437.

It is an arithmetic number, because the mean of its divisors is an integer number (73093140120).

Almost surely, 2^{1161015155502} is an apocalyptic number.

1161015155502 is an abundant number, since it is smaller than the sum of its proper divisors (1177965328338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161015155502 is a wasteful number, since it uses less digits than its factorization.

1161015155502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145928.

The product of its (nonzero) digits is 7500, while the sum is 33.

The spelling of 1161015155502 in words is "one trillion, one hundred sixty-one billion, fifteen million, one hundred fifty-five thousand, five hundred two".