100420607654144 has 18 divisors (see below), whose sum is σ = 200448947310150. Its totient is φ = 50210303826944.

The previous prime is 100420607654131. The next prime is 100420607654179. The reversal of 100420607654144 is 441456706024001.

It can be written as a sum of positive squares in only one way, i.e., 64349916985600 + 36070690668544 = 8021840^2 + 6005888^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100420607654095 and 100420607654104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196133999069 + ... + 196133999580.

Almost surely, 2^{100420607654144} is an apocalyptic number.

It is an amenable number.

100420607654144 is a deficient number, since it is larger than the sum of its proper divisors (100028339656006).

100420607654144 is an frugal number, since it uses more digits than its factorization.

100420607654144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392267998665 (or 392267998651 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 100420607654144 in words is "one hundred trillion, four hundred twenty billion, six hundred seven million, six hundred fifty-four thousand, one hundred forty-four".