161126737870 has 16 divisors (see below), whose sum is σ = 331460718048. Its totient is φ = 55243452960.

The previous prime is 161126737867. The next prime is 161126737873. The reversal of 161126737870 is 78737621161.

It is an interprime number because it is at equal distance from previous prime (161126737867) and next prime (161126737873).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161126737873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150905201 + ... + 1150905340.

It is an arithmetic number, because the mean of its divisors is an integer number (20716294878).

Almost surely, 2^161126737870 is an apocalyptic number.

161126737870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161126737870 is an abundant number, since it is smaller than the sum of its proper divisors (170333980178).

161126737870 is a wasteful number, since it uses less digits than its factorization.

161126737870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301810555.

The product of its (nonzero) digits is 592704, while the sum is 49.

The spelling of 161126737870 in words is "one hundred sixty-one billion, one hundred twenty-six million, seven hundred thirty-seven thousand, eight hundred seventy".