161260212548 has 24 divisors (see below), whose sum is σ = 286771816800. Its totient is φ = 79328386368.

The previous prime is 161260212521. The next prime is 161260212557. The reversal of 161260212548 is 845212062161.

It is a happy number.

It is a super-2 number, since 2×161260212548² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155078 + ... + 588701.

It is an arithmetic number, because the mean of its divisors is an integer number (11948825700).

Almost surely, 2^161260212548 is an apocalyptic number.

It is an amenable number.

161260212548 is a deficient number, since it is larger than the sum of its proper divisors (125511604252).

161260212548 is a wasteful number, since it uses less digits than its factorization.

161260212548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744659 (or 744657 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 161260212548 in words is "one hundred sixty-one billion, two hundred sixty million, two hundred twelve thousand, five hundred forty-eight".