670066740040 has 64 divisors (see below), whose sum is σ = 1559023536960. Its totient is φ = 259044614400.

The previous prime is 670066739977. The next prime is 670066740043. The reversal of 670066740040 is 40047660076.

It is a super-2 number, since 2×670066740040² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 670066739975 and 670066740002.

It is not an unprimeable number, because it can be changed into a prime (670066740043) 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, 2216686 + ... + 2500765.

It is an arithmetic number, because the mean of its divisors is an integer number (24359742765).

Almost surely, 2^670066740040 is an apocalyptic number.

It is an amenable number.

670066740040 is an abundant number, since it is smaller than the sum of its proper divisors (888956796920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670066740040 is a wasteful number, since it uses less digits than its factorization.

670066740040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717582 (or 4717578 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 670066740040 in words is "six hundred seventy billion, sixty-six million, seven hundred forty thousand, forty".