155222455550131 has 8 divisors (see below), whose sum is σ = 155617242736544. Its totient is φ = 154827687453120.

The previous prime is 155222455550117. The next prime is 155222455550147. The reversal of 155222455550131 is 131055554222551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155222455550131 - 2⁷ = 155222455550003 is a prime.

It is a super-2 number, since 2×155222455550131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155222435550131) 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, 11582191 + ... + 21085351.

It is an arithmetic number, because the mean of its divisors is an integer number (19452155342068).

Almost surely, 2^{155222455550131} is an apocalyptic number.

155222455550131 is a deficient number, since it is larger than the sum of its proper divisors (394787186413).

155222455550131 is an equidigital number, since it uses as much as digits as its factorization.

155222455550131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9544701.

The product of its (nonzero) digits is 1500000, while the sum is 46.

The spelling of 155222455550131 in words is "one hundred fifty-five trillion, two hundred twenty-two billion, four hundred fifty-five million, five hundred fifty thousand, one hundred thirty-one".