61145461171048 has 16 divisors (see below), whose sum is σ = 118601110030500. Its totient is φ = 29518498496256.

The previous prime is 61145461171037. The next prime is 61145461171153. The reversal of 61145461171048 is 84017116454116.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 58878274475524 + 2267186695524 = 7673218^2 + 1505718^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61145461170992 and 61145461171010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131779010913 + ... + 131779011376.

Almost surely, 2^{61145461171048} is an apocalyptic number.

It is an amenable number.

61145461171048 is a deficient number, since it is larger than the sum of its proper divisors (57455648859452).

61145461171048 is a wasteful number, since it uses less digits than its factorization.

61145461171048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263558022324 (or 263558022320 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 61145461171048 in words is "sixty-one trillion, one hundred forty-five billion, four hundred sixty-one million, one hundred seventy-one thousand, forty-eight".