61070661215 has 8 divisors (see below), whose sum is σ = 73770124128. Its totient is φ = 48532975200.

The previous prime is 61070661203. The next prime is 61070661221. The reversal of 61070661215 is 51216607016.

61070661215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61070661215 - 2¹² = 61070657119 is a prime.

It is a super-2 number, since 2×61070661215² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40443392 + ... + 40444901.

It is an arithmetic number, because the mean of its divisors is an integer number (9221265516).

Almost surely, 2^61070661215 is an apocalyptic number.

61070661215 is a deficient number, since it is larger than the sum of its proper divisors (12699462913).

61070661215 is a wasteful number, since it uses less digits than its factorization.

61070661215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80888449.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 61070661215 in words is "sixty-one billion, seventy million, six hundred sixty-one thousand, two hundred fifteen".