61051006516 has 12 divisors (see below), whose sum is σ = 106841006020. Its totient is φ = 30525004800.

The previous prime is 61051006487. The next prime is 61051006591. The reversal of 61051006516 is 61560015016.

It can be written as a sum of positive squares in 2 ways, for example, as 44783024400 + 16267982116 = 211620^2 + 127546^2 .

It is a congruent number.

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, 362740 + ... + 503668.

Almost surely, 2^61051006516 is an apocalyptic number.

It is an amenable number.

61051006516 is a deficient number, since it is larger than the sum of its proper divisors (45789999504).

61051006516 is a wasteful number, since it uses less digits than its factorization.

61051006516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249234 (or 249232 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 61051006516 in words is "sixty-one billion, fifty-one million, six thousand, five hundred sixteen".