61101450257 has 4 divisors (see below), whose sum is σ = 64317316080. Its totient is φ = 57885584436.

The previous prime is 61101450253. The next prime is 61101450283. The reversal of 61101450257 is 75205410116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61101450257 - 2² = 61101450253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61101450251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607932883 + ... + 1607932920.

It is an arithmetic number, because the mean of its divisors is an integer number (16079329020).

Almost surely, 2^61101450257 is an apocalyptic number.

It is an amenable number.

61101450257 is a deficient number, since it is larger than the sum of its proper divisors (3215865823).

61101450257 is a wasteful number, since it uses less digits than its factorization.

61101450257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215865822.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 61101450257 in words is "sixty-one billion, one hundred one million, four hundred fifty thousand, two hundred fifty-seven".