61051502215 has 32 divisors (see below), whose sum is σ = 80903681280. Its totient is φ = 43856736000.

The previous prime is 61051502153. The next prime is 61051502227. The reversal of 61051502215 is 51220515016.

It is not a de Polignac number, because 61051502215 - 2⁹ = 61051501703 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5138712 + ... + 5150578.

It is an arithmetic number, because the mean of its divisors is an integer number (2528240040).

Almost surely, 2^61051502215 is an apocalyptic number.

61051502215 is a deficient number, since it is larger than the sum of its proper divisors (19852179065).

61051502215 is a wasteful number, since it uses less digits than its factorization.

61051502215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13023.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 61051502215 in words is "sixty-one billion, fifty-one million, five hundred two thousand, two hundred fifteen".