101078006640 has 80 divisors (see below), whose sum is σ = 337445047968. Its totient is φ = 24880739328.

The previous prime is 101078006639. The next prime is 101078006641. The reversal of 101078006640 is 46600870101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (101078006639) and next prime (101078006641).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×101078006640³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101078006641) 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, 16195279 + ... + 16201518.

Almost surely, 2^101078006640 is an apocalyptic number.

101078006640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101078006640 is an abundant number, since it is smaller than the sum of its proper divisors (236367041328).

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

101078006640 is a wasteful number, since it uses less digits than its factorization.

101078006640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32396826 (or 32396820 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

Adding to 101078006640 its reverse (46600870101), we get a palindrome (147678876741).

The spelling of 101078006640 in words is "one hundred one billion, seventy-eight million, six thousand, six hundred forty".