461206345551 has 12 divisors (see below), whose sum is σ = 715340454552. Its totient is φ = 263546483088.

The previous prime is 461206345529. The next prime is 461206345559. The reversal of 461206345551 is 155543602164.

It is not a de Polignac number, because 461206345551 - 2³¹ = 459058861903 is a prime.

It is a super-2 number, since 2×461206345551² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461206345559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1568728920 + ... + 1568729213.

It is an arithmetic number, because the mean of its divisors is an integer number (59611704546).

Almost surely, 2^461206345551 is an apocalyptic number.

461206345551 is a deficient number, since it is larger than the sum of its proper divisors (254134109001).

461206345551 is a wasteful number, since it uses less digits than its factorization.

461206345551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137458150 (or 3137458143 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 461206345551 in words is "four hundred sixty-one billion, two hundred six million, three hundred forty-five thousand, five hundred fifty-one".