151061221163 has 4 divisors (see below), whose sum is σ = 157629100368. Its totient is φ = 144493341960.

The previous prime is 151061221147. The next prime is 151061221261. The reversal of 151061221163 is 361122160151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361122160151 = 1693 ⋅213303107.

It is a cyclic number.

It is not a de Polignac number, because 151061221163 - 2⁴ = 151061221147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151061221133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3283939568 + ... + 3283939613.

It is an arithmetic number, because the mean of its divisors is an integer number (39407275092).

Almost surely, 2^151061221163 is an apocalyptic number.

151061221163 is a deficient number, since it is larger than the sum of its proper divisors (6567879205).

151061221163 is an equidigital number, since it uses as much as digits as its factorization.

151061221163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6567879204.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 151061221163 in words is "one hundred fifty-one billion, sixty-one million, two hundred twenty-one thousand, one hundred sixty-three".