70716611551 has 16 divisors (see below), whose sum is σ = 71765913600. Its totient is φ = 69676080768.

The previous prime is 70716611531. The next prime is 70716611569. The reversal of 70716611551 is 15511661707.

It is a cyclic number.

It is not a de Polignac number, because 70716611551 - 2⁹ = 70716611039 is a prime.

It is a super-4 number, since 4×70716611551⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70716611501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22936056 + ... + 22939138.

It is an arithmetic number, because the mean of its divisors is an integer number (4485369600).

Almost surely, 2^70716611551 is an apocalyptic number.

70716611551 is a deficient number, since it is larger than the sum of its proper divisors (1049302049).

70716611551 is a wasteful number, since it uses less digits than its factorization.

70716611551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398.

The product of its (nonzero) digits is 44100, while the sum is 40.

The spelling of 70716611551 in words is "seventy billion, seven hundred sixteen million, six hundred eleven thousand, five hundred fifty-one".