66736736734070 has 64 divisors (see below), whose sum is σ = 132122389061376. Its totient is φ = 24116370216960.

The previous prime is 66736736734067. The next prime is 66736736734081. The reversal of 66736736734070 is 7043763763766.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66736736733988 and 66736736734006.

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, 296204060 + ... + 296429280.

It is an arithmetic number, because the mean of its divisors is an integer number (2064412329084).

Almost surely, 2^{66736736734070} is an apocalyptic number.

66736736734070 is a deficient number, since it is larger than the sum of its proper divisors (65385652327306).

66736736734070 is a wasteful number, since it uses less digits than its factorization.

66736736734070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273785.

The product of its (nonzero) digits is 336063168, while the sum is 65.

The spelling of 66736736734070 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred thirty-six million, seven hundred thirty-four thousand, seventy".